Thread (1 message) 1 message, 1 author, 2012-02-10

ARM: OMAP2xxx: PM: remove obsolete timer disable code in the suspend path

From: Kevin Hilman <hidden>
Date: 2012-02-10 19:26:53
Also in: linux-omap

Paul Walmsley [off-list ref] writes:
On Thu, 9 Feb 2012, Paul Walmsley wrote:
quoted
Remove omap_{read,write}l() from the 24xx PM code.  The clocksource
code should now handle what this was supposed to do.

Tested on N800 -- but it's hard to say whether this fixes anything.
OMAP24xx static suspend path is currently broken, and this patch
doesn't change that.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <redacted>
Cc: Rob Herring <redacted>
Cc: Tony Lindgren <tony@atomide.com>
Just realized that a stray change made it into the patch that was posted.
Below is a version with the stray change removed.  It applies on 
Tony's v3.3-rc3 testing branch, plus the OMAP2420 serial fix patch that 
was posted earlier.


- Paul

From: Paul Walmsley <paul@pwsan.com>
Date: Fri, 10 Feb 2012 01:40:04 -0700
Subject: [PATCH v2] ARM: OMAP2xxx: PM: remove obsolete timer disable code 
in the suspend path

Remove omap_{read,write}l() from the 24xx PM code.  The clocksource
code should now handle what this was supposed to do.

Tested on N800 -- but it's hard to say whether this fixes anything.
OMAP24xx static suspend path is currently broken, and this patch
doesn't change that.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <redacted>
Cc: Rob Herring <redacted>
Cc: Tony Lindgren <tony@atomide.com>
Acked-by: Kevin Hilman <redacted>
quoted hunk
---
 arch/arm/mach-omap2/pm24xx.c |   22 +---------------------
 1 files changed, 1 insertions(+), 21 deletions(-)
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index 23de98d..18eda53 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -254,26 +254,6 @@ static int omap2_pm_begin(suspend_state_t state)
 	return 0;
 }
 
-static int omap2_pm_suspend(void)
-{
-	u32 wken_wkup, mir1;
-
-	wken_wkup = omap2_prm_read_mod_reg(WKUP_MOD, PM_WKEN);
-	wken_wkup &= ~OMAP24XX_EN_GPT1_MASK;
-	omap2_prm_write_mod_reg(wken_wkup, WKUP_MOD, PM_WKEN);
-
-	/* Mask GPT1 */
-	mir1 = omap_readl(0x480fe0a4);
-	omap_writel(1 << 5, 0x480fe0ac);
-
-	omap2_enter_full_retention();
-
-	omap_writel(mir1, 0x480fe0a4);
-	omap2_prm_write_mod_reg(wken_wkup, WKUP_MOD, PM_WKEN);
-
-	return 0;
-}
-
 static int omap2_pm_enter(suspend_state_t state)
 {
 	int ret = 0;
@@ -281,7 +261,7 @@ static int omap2_pm_enter(suspend_state_t state)
 	switch (state) {
 	case PM_SUSPEND_STANDBY:
 	case PM_SUSPEND_MEM:
-		ret = omap2_pm_suspend();
+		omap2_enter_full_retention();
 		break;
 	default:
 		ret = -EINVAL;
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